Yeah, it really isnt connected, so im really wondering what theyre doing (still waiting for their schematic).
But ive noticed that the LinkIt Smart 7688 also doesnt need a center tap voltage.
And as you said, the Datasheet also doesnt give any indication.
Makes you really wonder why, but seems like it works

Yeah, that design is (on facing MT7688 side) tying both the transformer magnetics Tx's CT and Rx's CT together, then thru 100 nF bypass capacitor to Gnd. No extra DC bias is applied. If that is the working design, it begins to make sense that
Omega 2's Net_PWR output lead is left floating, since there is no DC voltage needs to be supplied.
In another word, it's not 3.3V nor 2.0V DC bias.

My suggestion is a dock that holds a bunch of AAA batteries to power the thing. Maybe an on/off switch to go with it.

Also, there should be a video out option. I know the official line is that the Omega2+ isn't powerful enough to output video, but that's horse hockey. That's thinking like a Millennial who only knows HDMI and 1080p.

If the Atari 2600 could output composite video in 1977 with 128 BYTES of RAM running at 1MHz, then the Omega can do at least as good as a Commodore VIC-20.

If the Atari 2600 could output composite video in 1977 with 128 BYTES of RAM running at 1MHz, then the Omega can do at least as good as a Commodore VIC-20.

Apples and oranges. It wasn't the MOS 6507 on the Atari directly driving the composite-output, it was controlling the TIA, which did the actual driving of the analog signal. On the Omega2 there is no analog output at all and certainly nothing to drive a composite-output or the like at all; on the Atari 2600, the game-logic was running on the MOS and video-rendering and signal-driving happened on the TIA -- the CPU-speed is irrelevant wrt. video-output in such a setup.

Sorry, but nobody is really interested to do researches for you. If your lack of knowledge lets you believe everything is possible do it! Develop your own Hardware based on Omega2. Hard & software is open-source. Then you can also make your own request about your Omega2 based Hardware with Atari Display output ;)

So many Negative Nellies on the internet these days. Everything's a "no" before it's even been tried.

I didn't say "no" or that it's not possible, I was saying your comparison is stupid. Of course you could even go and create a dock for driving twelve 8K-displays simultaneously, if you wanted to! Or 200 simultaneous composite-outputs! Nothing stopping you.

@WayneL i gotta revisit the schematic n everything when i have time this weekend, ive waited for my onion to arrive first so i can make sure they wont change anything in the pinout etc. AAA batteries would be obscolete when the dock has LiPo connectors and a charger on it, i would rather see the AAA as e-waste compared to lithium cells.

And adding video-output is a rather special thing and out of scope for this project, im sorry. It would add a ton of software to be made or ported over from other SoC's and i dont think there is a huge interest in it.

@Flemming-Richter i dont have the time right now to work on them and also forgot about them because i got a different project running too. but i will probably check back this summer, so it will take time